/
charmhub.go
82 lines (66 loc) · 2.04 KB
/
charmhub.go
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// Copyright 2020 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package charmhub
import (
"fmt"
"net/url"
"os"
"strings"
"github.com/juju/cmd/v3"
"github.com/juju/errors"
"github.com/juju/gnuflag"
"github.com/juju/loggo"
"github.com/juju/juju/charmhub"
"github.com/juju/juju/cmd/modelcmd"
"github.com/juju/juju/core/arch"
)
var logger = loggo.GetLogger("juju.cmd.juju.charmhub")
func newCharmHubCommand() *charmHubCommand {
return &charmHubCommand{
arches: arch.AllArches(),
CharmHubClientFunc: func(config charmhub.Config) (CharmHubClient, error) {
return charmhub.NewClient(config)
},
}
}
type charmHubCommand struct {
cmd.CommandBase
modelcmd.FilesystemCommand
arch string
arches arch.Arches
base string
charmHubURL string
// DEPRECATED: Use --base instead.
series string
CharmHubClientFunc func(charmhub.Config) (CharmHubClient, error)
}
func (c *charmHubCommand) SetFlags(f *gnuflag.FlagSet) {
f.StringVar(&c.charmHubURL, "charmhub-url", charmhub.DefaultServerURL, "specify the Charmhub URL for querying the store")
}
// Init initializes the info command, including validating the provided
// flags. It implements part of the cmd.Command interface.
func (c *charmHubCommand) Init(args []string) error {
// If the architecture is empty, ensure we normalize it to all to prevent
// complicated comparison checking.
if c.arch == "" {
c.arch = ArchAll
}
if c.arch != ArchAll && !c.arches.Contains(c.arch) {
return errors.Errorf("unexpected architecture flag value %q, expected <%s>", c.arch, c.archArgumentList())
}
if urlFromEnv := os.Getenv("CHARMHUB_URL"); urlFromEnv != "" {
c.charmHubURL = urlFromEnv
}
if c.charmHubURL == "" {
c.charmHubURL = charmhub.DefaultServerURL
}
_, err := url.ParseRequestURI(c.charmHubURL)
if err != nil {
return errors.Annotatef(err, "invalid charmhub-url")
}
return nil
}
func (c *charmHubCommand) archArgumentList() string {
archList := strings.Join(c.arches.StringList(), "|")
return fmt.Sprintf("%s|%s", ArchAll, archList)
}